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2 years ago

2x2 − 2z4 + y2 − x2 + z4 if x = −4, y = 3, and z = 2.

Mathematics

1 answer:

Setler [38]2 years ago

5 0

answer: 9

Step-by-step explanation:

x = - 4; y = 3; z = 2;2 x² - 2 z^4 + y² - x² + z^4 = = 2 * (-4)² - 2 * 2^4 + 3² - ( -4)² + 2^4 == 2 * 16 - 2 * 16 + 9 - 16 + 16 = = 32 - 32 + 9 - 16 + 16 = 9

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Find the x- and y- intercepts of the following equation.

Ivanshal [37]

Answer:

The x-intercept is $(4,0)$

The y-intercept is $(0,-3)$

Step-by-step explanation:

Suppose you have a function f:

$f = f(x,y) = 0$

The x-intercept is the value of x when $y = 0$ .

The x-intercept is the value of y when $x = 0$ .

Solution

We have:

$f(x,y) = -3x + 4y = -12$

$-3x + 4y + 12 = 0$

x-intercept

The x-intercept is the value of x when $y = 0$ . So:

$-3x + 4(0) + 12 = 0$

$-3x + 12 = 0$ *(-1)

$3x - 12 = 0$

$3x = 12$

$x = \frac{12}{3}$

$x = 4$

The x-intercept is $(4,0)$

y-intercept

The y-intercept is the value of y when $x = 0$ . So:

$-3(0) + 4y + 12 = 0$

$4y + 12 = 0$

$4y = -12$

$y = \frac{-12}{4}$

$y = -3$

The y-intercept is $(0,-3)$

5 0

2 years ago

Please help a girl out I'm so confused

Sloan [31]

Answer:

A= 16 B=28

Step-by-step explanation:

So the ration is 4:7, you have to find multiples that have that same ratio

Multiply both numbers by 4, this should get you

16:28

16 + 28 = 44

Therefore this is the correct answer

5 0

3 years ago

It costs $35 for a membership at a wholesale store. the monthly fee is $15. Write an equation that represents the total cost( in

Nastasia [14]

Answer:

35+15=50 or 35$+15$=50$

Step-by-step explanation:

If its for twelve months

35$+180$=215$

8 0

2 years ago

I can’t really understand this can someone help Me?

topjm [15]

The answer is 4/5 because there are 20 in total squared and circles but the total shapes is 25 so simplify the fraction 20/25=4/5

6 0

3 years ago

-3 = 3/4r + 2 find r

kow [346]

Answer:

r = -20/3

Step-by-step explanation:

can i get brainliest plz

3 0

3 years ago

Read 2 more answers